The Porcupine Cabinet questions the cost-efficient paradigm that cabinets must consist of a box with two front doors, regardless of their design. TheCabinet instead proposes a flexible skin in which its interior belongings can be accessed from any angle. Taking inspiration from Japanese samurai armor and porcupine keels, the conceptual and technical challenge of building the Porcupine Cabinet takes the original investigation developed for the Piano Shelf to another level.